com.magnet.max.android.rest.qos.internal.ReliableManager.java Source code

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Here is the source code for com.magnet.max.android.rest.qos.internal.ReliableManager.java

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/*
 * Copyright (c) 2015 Magnet Systems, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.magnet.max.android.rest.qos.internal;

import android.util.Log;
import com.activeandroid.query.Select;
import com.magnet.max.android.rest.qos.Condition;
import com.magnet.max.android.rest.qos.conditions.WifiCondition;
import com.magnet.max.android.rest.CallOptions;
import com.magnet.max.android.rest.ReliableCallOptions;
import com.magnet.max.android.util.StringUtil;
import com.squareup.okhttp.Request;
import java.util.ArrayList;
import java.util.List;
import java.util.Set;

public class ReliableManager {
    private static final String TAG = ReliableManager.class.getSimpleName();

    public void saveRequest(Request request, ReliableCallOptions options, String reason) {
        String requestHash = CacheUtils.getRequestHash(request);
        ReliableRequestEntity operation = null; //findRequest(requestHash, request, options);
        long currentTimestamp = System.currentTimeMillis();
        if (null == operation) {
            operation = new ReliableRequestEntity();
            operation.createdAt = currentTimestamp;
            operation.url = request.urlString();
            operation.httpMethod = request.method();
            operation.requestHash = requestHash;
            operation.request = new CachedRequest(request);
            operation.options = options;
            operation.wifiPreq = hasPrerequisite(options.getConditions(), WifiCondition.class);

            Log.d(TAG, "Saving reliable request " + request);
        } else {
            //Update body
            Log.d(TAG, "Updating reliable request " + request);
            operation.retries = operation.retries + 1;
        }
        operation.updatedAt = currentTimestamp;
        long newExpiredTime = currentTimestamp + options.getExpiresIn() * 1000;
        if (null == operation.getExpiredAt() || newExpiredTime > operation.getExpiredAt()) {
            operation.expiredAt = newExpiredTime;
        }
        if (StringUtil.isNotEmpty(reason)) {
            operation.lastFailureReason = reason;
        }
        operation.lastFailureTime = currentTimestamp;
        operation.save();
    }

    public void removeRequest(Request request) {
        String requestHash = CacheUtils.getRequestHash(request);
        ReliableRequestEntity operation = findRequest(requestHash, null, null);
        if (null != operation) {
            operation.delete();
        }
    }

    public List<ReliableRequestEntity> getAllCachedRequestEntities() {
        List<ReliableRequestEntity> operations = new Select().from(ReliableRequestEntity.class)
                .orderBy("updatedAt DESC").execute();

        List<Integer> expiredIndexes = new ArrayList<>();
        long currentTimestamp = System.currentTimeMillis();
        for (int i = 0; i < operations.size(); i++) {
            if (operations.get(i).expiredAt < currentTimestamp) {
                operations.get(i).delete();
                expiredIndexes.add(i);
            }
        }

        return operations;
    }

    public void clearPendingCalls() {
        List<ReliableRequestEntity> operations = new Select().from(ReliableRequestEntity.class).execute();
        for (int i = 0; i < operations.size(); i++) {
            operations.get(i).delete();
        }
    }

    private boolean hasPrerequisite(Set<Condition> prerequisites, Class<? extends Condition> prerequisite) {
        if (null != prerequisites && !prerequisites.isEmpty()) {
            for (Condition p : prerequisites) {
                if (p.getClass().equals(prerequisite)) {
                    return true;
                }
            }
        }

        return false;
    }

    private ReliableRequestEntity findRequest(String requestHash, Request request, CallOptions options) {
        //Log.d(TAG, "request hash " + requestHash + " for request \n" + request);
        List<ReliableRequestEntity> operations = new Select().from(ReliableRequestEntity.class)
                .where("requestHash = ?", requestHash).orderBy("updatedAt DESC").execute();
        if (null != operations && !operations.isEmpty()) {
            // Pick the first one and remove all others
            if (operations.size() > 1) {
                for (int i = 1; i < operations.size(); i++) {
                    operations.get(i).delete();
                }
            }
            return operations.get(0);
        }

        return null;
    }

}